Inverted Roof Membrane Assembly Detail

Liveroof green roof module detail architectural drawings cut sheet system properties intensive conventional roof tpo epdm membrane slip sheet created date.

Inverted roof membrane assembly detail.

An inverted roof also referred to as a protected membrane or upside down roof is form of flat roof in which the waterproofing layer is beneath the thermal insulation rather than above it. Inverted roofing systems are also durable and offer substantial protection for your building. Inverted roofs are designed with the waterproofing layer usually a liquid applied membrane beneath the insulation. Inverted roof membrane assembly irma offer superior protection of the roof membrane from foot traffic and mechanical damage.

Inverted roofing systems are advantageous because they protect your roof from expansion and contraction caused by weather fluctuations. In an irma the system s insulation is installed above the waterproofing membrane instead of below as in a conventional roof assembly. Inverted roof membrance assembly irma systems are used in applications where the membrane requires protection from site specific hazards. Some references may use the term protected membrane roof or pmr system.

An irma system is the most common type of roof used on modern high rises today. Inverted roof membrane assembly. In an inverted membrane system the coventional membrane arrangement is invereted or turned upside down. Inverted roof membrane assembly irma systems are used in applications where the membrane requires protection from site specific hazards.

An inverted roof also known sometimes as a protected membrane or pmr roof uses the same materials as a conventional roof but places insulation on the top of the membrane. This assembly has produced a variety of terms such as an upside down roof or inverted roof system and in 1968 a patent was issued on the insulated roof membrane assembly irma developed by j s. Liveroof global llc keywords. This kind of roofing system is especially valuable in canada where the weather fluctuates rapidly and routinely.

These systems are typically applied in conditions where there is extensive roof traffic or to protect from excessive weather conditions such as multiple hail events. Insulation boards are loose laid on top of the membrane and then weighted down with paving slabs or gravel ballast. The membrane is further protected by ballast overtop the insulation. In an inverted membrane system the conventional membrane arrangement is inverted or turned upside down.

Invented by dow in the late 1960 s an inverted roof system uses dupont styrofoam brand xps insulation to protect the membrane helping improve the performance and longevity of the entire roof system. These systems are typically applied in conditions where there is extensive roof traffic or to protect from excessive weather conditions such as multiple hail events. Inverted roof systems are also referred to as upside down roof assembly. Best of the dow chemical co.